Alameda C water temperature
Alameda C, Niles, California · River
The current water temperature at Alameda C is 18.6 °C (as of September 21, 2026, source: USGS).
A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.
Measurement series & statistics
This measurement series includes 107 data points since July 23, 2026.
Lowest recorded value: 18.2 °C on September 2, 2026 · highest value: 26.1 °C on August 9, 2026.
In September, temperatures have ranged between 18.2 °C and 23.8 °C.
The current value is 2.1 °C below the September average of this series.
Nearby waters
More measuring points: Alameda C
Frequently asked questions
Can you swim at Alameda C right now?
The current water temperature is 18.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Alameda C?
Currently 18.6 °C (updated continuously).
How warm is at Alameda C in September?
In September, the water temperature recently averaged 20.7 °C.
When is the water warmest at Alameda C?
Across the measurement record, July is on average the warmest month (23.1 °C).
